EP0662453A1 - Vorrichtung zur Reinigung eines Fluids, insbesondere von Wasser - Google Patents

Vorrichtung zur Reinigung eines Fluids, insbesondere von Wasser Download PDF

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Publication number
EP0662453A1
EP0662453A1 EP95420004A EP95420004A EP0662453A1 EP 0662453 A1 EP0662453 A1 EP 0662453A1 EP 95420004 A EP95420004 A EP 95420004A EP 95420004 A EP95420004 A EP 95420004A EP 0662453 A1 EP0662453 A1 EP 0662453A1
Authority
EP
European Patent Office
Prior art keywords
fluid
return valve
filter
treated
filtration means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP95420004A
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English (en)
French (fr)
Inventor
Patrick Garrigues
Luc Gabette
Jean-Paul Astegno
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEB SA
Original Assignee
SEB SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEB SA filed Critical SEB SA
Publication of EP0662453A1 publication Critical patent/EP0662453A1/de
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C02F1/003—Processes for the treatment of water whereby the filtration technique is of importance using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices

Definitions

  • the present invention relates to the general technical field of purifying fluids, and in particular water, by passing the fluid to be treated over a substrate whose physicochemical properties ensure the treatment of impurities contained in the fluid.
  • the present invention relates to a device for purifying fluids, and very particularly but not exclusively to a water purifying apparatus, comprising a reservoir of fluid to be treated associated with a pumping means capable of circulating the fluid to be treated through a means filtration of the lower part of said means to its upper part to a distribution member of the treated fluid.
  • a water purification apparatus for domestic use comprising a water tank to be treated in which is placed a filter cartridge intended to ensure the treatment and the purification of the water.
  • the apparatus also includes a pump capable of pumping the water to be treated in order to direct it, by means of a tube, down the filter cartridge so as to circulate the water to be treated from below. at the top in the filter cartridge.
  • the treated and purified water thus leaves the upper part of the filter cartridge via a distribution tube, the end of which opens into a removable container integrated in the body of the purification.
  • the constituent materials of the filter cartridge consist, in known manner, of a mixture of activated carbon added with silver salt to combat bacterial growth, and of ion exchange resin.
  • Various other constituents can be added to the filter cartridge depending on the presence of specific components in the water to be treated.
  • Running water can indeed be rid in whole or in part by means of the filter cartridge, of the main contaminating agents of organic or inorganic type such as chlorine, lead, pesticides, heavy metals, nitrates, etc. origin of unpleasant tastes, smells or colors.
  • the object of the present invention therefore aims to remedy the various problems listed above, and in particular to provide an apparatus for purifying fluids, in particular water, the filtration efficiency of which is improved in a lasting manner throughout the entire process. duration of use of the filter cartridge using particularly simple means.
  • Another object of the invention is to propose an apparatus for purifying fluids whose efficiency and activity of the filter cartridge is improved and whose lifespan is extended.
  • Another object of the invention is to provide an apparatus for purifying fluids, the maintenance of the filter cartridge of which is in humid condition is obtained by means of particularly simple means which do not negatively influence the good flow of the fluid through the filter cartridge.
  • Another object of the invention is to provide an apparatus for purifying fluids in which the passage of the fluid through the filter cartridge is homogeneous.
  • Another object of the invention is to provide an apparatus for purifying fluids making it possible to facilitate the change of the filter cartridge without excessive handling, and without risk of bacterial contamination.
  • Another object of the invention is to provide an apparatus for purifying fluids in which the distribution of the treated fluid is facilitated and capable of adapting to different types of containers.
  • an apparatus for purifying fluids comprising, a reservoir of fluid to be treated associated with a pumping means itself connected by an inlet to the part bottom of a filtration means, said pumping means being able to circulate the fluid to be treated through the filtration means from its lower part to its upper part to a distribution means characterized in that it comprises a non-return valve for the fluid to be treated, arranged upstream of the filtration means, considering the direction of circulation of the fluid to be treated, so as to leave the filtration means in permanent contact with the fluid to be treated when the pumping means is at a standstill.
  • FIG. 1 shows in a general schematic view a preferred embodiment of a fluid purification device according to the invention consisting of water purifying apparatus for household use.
  • the water purification device comprises a main frame made of plastic material including a base 1 on which is attached a shell 2 defining with the base 1 the lower part of the device.
  • the latter comprises a pumping means 3 intended to provide an operating pressure for circulating the fluid to be treated from a storage tank 4 to a filtration means 5.
  • the reservoir 4 is preferably removable, disposed at least partly behind the main frame of the apparatus, and connected by a connection system 6 to an orifice 7 for supplying the pumping means 3.
  • the connection device 6 comprises in a known manner a valve 8 mounted movable elastically by means of a spring 9 in a perforation 7a formed in the bottom of the tank 4.
  • the valve 8 is provided with a seal 9a and mounted so as to clear the perforation 7a when the reservoir 4 is fixed to the main frame of the apparatus via the connection device 6. In this position, the perforation 7a is substantially in line with the orifice 7 to allow the fluid to be treated to be driven by the pumping means 3.
  • the assembly of the reservoir 4 on the frame of the apparatus is carried out by introduction of a circular skirt 12 surrounding the orifice 7a externally at the bottom of the reservoir 4, in a collar of g uidage 13 of larger diameter extending towards the reservoir 4 from the cover 2.
  • the guide collar 13 may be provided with a seal and a seal cover 14 covering it.
  • the reservoir 4 is closed at its upper part by a cover 4a, preferably removable, provided with a filling opening enabling the tank 4 to be filled without removing the cover 4a.
  • the pumping means 3 consists of a motor pump group supplied with electrical energy preferably low-voltage and capable of ensuring an average pumping flow rate of the order of 1 liter / min and which can vary between 0.8 and 1, 2 liters / min.
  • the pumping means 3 is disposed in the internal volume defined by the base 1 and the cover 2 and is connected by a tube 15 to an outlet orifice 16 formed in the cover 2, preferably substantially on the front face of the frame of the device and in line with the location reserved for the filtration means 5.
  • the outlet orifice 16 is surrounded on the outside of the cover 2 by a guide skirt 17, cylindrical and an integral part of the cover 2.
  • the filtration means 5 is constituted by a cartridge 20, of substantially cylindrical shape also disposed substantially vertically on the main frame of the device, and capable of being removably mounted on said frame.
  • the lower part 21 of the cartridge 20 is constituted by a circular envelope delimiting a settling chamber 22 provided in its internal central part with a well 23, preferably cylindrical and circular, opening to the outside by an inlet 24.
  • the setting in place of the cartridge 20 on the main frame of the apparatus is effected by force-pressing the bottom part 21 into a bowl provided in the cover 2 then by locking using for example a bayonet system, the well 23 being aligned with the outlet orifice 16, the walls of the well 23 coming to bear on and surrounding the guide skirt 17.
  • the cartridge 20 is removably attached to the outside of the main frame, which facilitates its gripping and its change.
  • the cartridge 20 comprises from the bottom up a lower filtering plate 25, for example made of polypropylene and with a mesh 20 microns, and an upper filtering plate 26 of the same composition and the same mesh, located in the upper part of the cartridge 20.
  • the latter is also provided with a cover 27 for closing with an opening 27a in the form of a perforated central column 28.
  • the filter trays respectively, lower 25 and upper 26, are more particularly intended to carry out mechanical filtration of the largest unwanted particles, while the central internal volume of the cartridge 20 situated between the filter trays 25, 26 is filled with a filtering composition based on a mixture of activated carbon, ion exchange resin and metallic particles responsible for preferentially treating the agents responsible for the taste and odor of water.
  • the filtering composition is also intended to ensure the treatment of certain heavy metals, of pesticides, and to eliminate chlorine, the anionic resin being more particularly chosen to eliminate the compounds based on nitrates.
  • the cartridge will consist of approximately 240 cubic centimeters of anionic resin and 175 cubic centimeters of activated carbon in grains etched with silver and 85 cubic centimeters of metallic particles based on copper and / or zinc by example.
  • an anti-tartar means in the apparatus and in particular in the cartridge 20 itself.
  • This means may be a series of vitreous silicopolyphosphate beads, placed at the top of the cartridge 20 and releasing gradually and regularly in contact with water, polyphosphates to obtain a concentration of total phosphorus (P2 O5) between 0 , 3 and 12 mg / liter and preferably between 1 and 5 mg / liter.
  • the upper terminal end of the cartridge 20 is constituted by a cap 32 provided with a pouring tube 33 partially opening out of the cap 32 and comprising a connecting branch 34 rotatably mounted on the perforated column 28.
  • the connecting branch 34 is pressed in and supported in rotation about the main axis xx 'of the cartridge 20, said branch 34 being secured to the cap 32 by an upper pin 35 forcibly anchored in a housing 36.
  • the cap 32 and the pouring tube 33 thus constitute a directional distribution means.
  • the fluid purification device also includes a non-return valve 40 for the fluid to be treated, disposed in a flow conduit upstream of the filtration means 5, considering the direction of circulation of the fluid to be treated. so as to leave the filtration means 5 in permanent contact with the fluid to be treated when the pumping means 3 is stopped.
  • the non-return valve 40 is of the mechanical type, that is to say of displacement type, mounted at the inlet 24 of the filtration means 5 in a fluid flow conduit, and preferably in the chamber. decantation 22.
  • the non-return valve 40 is mounted in the central well 23.
  • the non-return valve 40 can also be mounted at one of the two ends of the tube 15.
  • the non-return valve 40 made of a deformable plastic material such as food grade silicone, is in the form of a hollow main body 41 substantially cylindrical forming an inlet chamber of fluid 42, the lower end of which is provided with an external annular flange 43.
  • the non-return valve 40 also comprises, in the part of the hollow main body 41 opposite the external annular flange 43, a zone of frustoconical shape ending in two elastic lips 44, 45 forming a pinch.
  • the two lips 44, 45 are closed against each other in the rest position and delimit between them a passage slot 46.
  • the non-return valve 40 is mounted substantially vertically in alignment with the outlet orifice 16 and the inlet 24 forming a flow conduit, in the central well 23 and is held in place by compression of the external annular flange 43 in a housing defined between the guide skirt 17 and the outlet orifice 16.
  • the non-return valve 40 is mounted so that the fluid in its normal flow direction flows into the inlet chamber 42 and then pressurizes the walls of the frustoconical zone, then finally the lips 44.
  • the non-return valve 40 is thus deformable between an elastic rest position in which the flow conduit is closed in leaktight manner when the pumping means 3 is stopped, and an open position in which the cond flow outlet is open when the pumping means 3 is in service.
  • the pressure of the fluid flowing in the inlet chamber 42 is sufficient to exert pressure on the lips 45, 46 which allows the opening (FIG. 5) of the slot 46.
  • the lips 44, 45 naturally resume their elastic rest position corresponding to a tightly closed position of the slot 46 (FIG. 4).
  • non-return valve 40 of mechanical type such as spring valves, movable between the two positions defined above, by rotation, sliding, etc. 'one of these alternative embodiments (not shown in the figures), the non-return valve 40 will be formed of a ball freely resting in a sealed manner by gravity on a seat formed in the central well 23 or in the base 1 to level of entry 24. It is also possible to mount electrically controlled valves, such as solenoid valves.
  • the user after having filled the reservoir 4 with the fluid to be treated and for example with water coming from the distribution network, starts the pumping means 3 which ensures the circulation of the water under its normal operating pressure.
  • the start-up can be ensured by a conventional on / off switch, preferably provided, for safety reasons in particular, with an auto shut-off.
  • the water thus passes at a flow rate for example of the order of 0.8 to 1.2 l / min from the reservoir 4, through the tube 15 to reach the inlet chamber 42.
  • the pressure exerted on the internal faces lips 44, 45 allows the opening of the slot 46 and the passage of the water to be treated in the upper part of the well 23, then in the decantation chamber 22 which is filled.
  • the largest particles can be deposited at the bottom of the chamber, the progressive filling of the latter also allowing a homogeneous distribution of the stream of water to be treated over the entire section of the cartridge. 20.
  • Such a distribution has the advantage of avoiding preferential paths of the water to be treated through the filter composition from the bottom part 21 of the filter, which contributes to improving the quality of treatment.
  • the water to be treated then continues its journey through the entire section of the cartridge 20 to the upper part of said cartridge, then travels through the pouring tube 33 to a recovery container (not shown in the figures).
  • the Schore resistance of the non-return valve 40 will be of the order of 40 ⁇ 5 Schores.
  • the cover 27 is in the form of a truncated cone defining, from the perforated column 28, walls inclined towards the lower part 21. Such an arrangement facilitates the exhausting air upwards through the perforated column 28 and consequently prevents the development of bacterial foci.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Sorption (AREA)
EP95420004A 1994-01-10 1995-01-10 Vorrichtung zur Reinigung eines Fluids, insbesondere von Wasser Ceased EP0662453A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9400342A FR2714847B1 (fr) 1994-01-10 1994-01-10 Dispositif de purification de fluide et en particulier d'eau.
FR9400342 1994-01-10

Publications (1)

Publication Number Publication Date
EP0662453A1 true EP0662453A1 (de) 1995-07-12

Family

ID=9459021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95420004A Ceased EP0662453A1 (de) 1994-01-10 1995-01-10 Vorrichtung zur Reinigung eines Fluids, insbesondere von Wasser

Country Status (4)

Country Link
US (1) US5643444A (de)
EP (1) EP0662453A1 (de)
CA (1) CA2139916A1 (de)
FR (1) FR2714847B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2794378A1 (fr) * 1999-06-02 2000-12-08 Seb Sa Cartouche filtrante pour appareil domestique de traitement de l'eau
CN105495983A (zh) * 2014-09-18 2016-04-20 天津工业大学 一种便携式手压超滤膜净水杯

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5916439A (en) * 1997-03-18 1999-06-29 Safe Water Technologies, Inc. Advanced safe water treatment system
US6042729A (en) 1998-02-18 2000-03-28 Chau; Yiu Chau Regeneration of water treatment media
US6096207A (en) * 1998-03-24 2000-08-01 Usf Filtration And Separations Group Inc. Filter cartridge assembly having a reusable support core structure
GB9820609D0 (en) * 1998-09-23 1998-11-11 Luxton Christopher P Apparatus for removing residual cleaning chemicals from water
US6139739A (en) * 1998-10-08 2000-10-31 Cuno Incorporated Composite filter element
IL126775A (en) * 1998-10-27 2002-03-10 Tsabari Yigal Water treatment system
US6344146B1 (en) * 1998-12-11 2002-02-05 Battelle Memorial Institute Portable water purification device
RU2183980C2 (ru) * 1999-11-23 2002-06-27 Мигалин Валентин Павлович Установка для очистки питьевой воды
GB0110227D0 (en) * 2001-04-26 2001-06-20 Chloroxy Tech Ltd Water filter cartridge
KR100777951B1 (ko) 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법
US7614507B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same
US20050279696A1 (en) 2001-08-23 2005-12-22 Bahm Jeannine R Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
US7614508B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing silver coated particles and processes for using the same
DE60130044D1 (de) * 2001-09-10 2007-09-27 Aquaest Internat B V Eingebauter wasserfilter mit zeolithen, filtrationmembranen und wasserdurchflussregelungsmitteln
US20040043807A1 (en) * 2002-08-30 2004-03-04 Pennington Richard M. Poker game with a second chance feature
WO2004113232A2 (en) * 2003-06-26 2004-12-29 Tersano Inc. System and containers for water filtration and item sanitization
US7708958B2 (en) * 2003-06-26 2010-05-04 Tersano Inc. System and containers for water filtration and item sanitization
USD501912S1 (en) 2003-08-19 2005-02-15 Procter & Gamble Water filter device
RU2256481C1 (ru) * 2003-10-27 2005-07-20 Вологодский государственный технический университет Напорный двухступенчатый фильтр
US7144513B2 (en) * 2004-05-06 2006-12-05 Nestec S.A. Water treatment method in high cycle dispensing systems for scale control
US10526219B2 (en) * 2004-08-26 2020-01-07 King Technology, Inc. Drinking water purification device
WO2009023186A2 (en) * 2007-08-10 2009-02-19 Freije Treatment Systems, Inc. Method and apparatus for treating a fluid
US8187444B2 (en) * 2007-08-10 2012-05-29 Eric John Kruger Fluid treatment device
AU2008221526B2 (en) * 2007-09-19 2014-08-28 Sunbeam Corporation Ltd Water Dispenser
US7993191B2 (en) 2008-03-10 2011-08-09 Igt Gaming system, gaming device and method for providing draw poker game
US8580084B2 (en) * 2010-02-01 2013-11-12 Daniel J. Simpson Desalination method using a filter press
US20110192179A1 (en) * 2010-02-05 2011-08-11 Freije Iii William F Evaporative heat transfer system and method
US20140332478A1 (en) 2012-05-13 2014-11-13 Aquasana, Inc. Pitchers, filtration units, and filtration systems and methods
US20140124429A1 (en) * 2012-05-13 2014-05-08 David Rinaldis Pitchers, pitcher and filter base combinations, dispensers, dispenser and filter base combinations, and filter bases
US20150259218A1 (en) * 2014-03-14 2015-09-17 Aquasana, Inc. Filtration units, filtration systems, and filtration methods
FR3036488B1 (fr) * 2015-05-22 2017-10-06 Ste Action Europe Sarl Dispositif de prelevement et d'analyse
US11185800B2 (en) 2017-08-15 2021-11-30 Conopco, Inc. Apparatus and method for filtering aqueous liquid

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1271335A (en) * 1970-07-10 1972-04-19 Giulini Gmbh Geb Treatment of water
US3950253A (en) * 1972-11-20 1976-04-13 Dynek Corporation Domestic water filtration apparatus
US4603001A (en) * 1980-10-10 1986-07-29 Ward Raymond E Apparatus and method for filtering a fluid
EP0392726A2 (de) * 1989-04-04 1990-10-17 Kabushiki Kaisha Aiaishi Filtriergerät
EP0443747A2 (de) * 1990-02-23 1991-08-28 Culligan International Company Stromkollektor/-verteiler für einen Wasserbehandlungsbehälter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3420709A (en) * 1965-04-29 1969-01-07 Diamond Shamrock Corp Liquid purification by adsorption
EP0206285B2 (de) * 1985-06-27 1997-02-26 Erich Alhäuser Filterpatrone zur Verbesserung der Qualität von Trinkwasser
US4717476A (en) * 1986-04-25 1988-01-05 Scott Colonel W Water purification apparatus
US5290442A (en) * 1991-09-24 1994-03-01 Clack Corporation Self-contained, purified drinking water refrigerator storage apparatus
US5362385A (en) * 1993-05-26 1994-11-08 Neal A. Klegerman Portable water filtering device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1271335A (en) * 1970-07-10 1972-04-19 Giulini Gmbh Geb Treatment of water
US3950253A (en) * 1972-11-20 1976-04-13 Dynek Corporation Domestic water filtration apparatus
US4603001A (en) * 1980-10-10 1986-07-29 Ward Raymond E Apparatus and method for filtering a fluid
EP0392726A2 (de) * 1989-04-04 1990-10-17 Kabushiki Kaisha Aiaishi Filtriergerät
EP0443747A2 (de) * 1990-02-23 1991-08-28 Culligan International Company Stromkollektor/-verteiler für einen Wasserbehandlungsbehälter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2794378A1 (fr) * 1999-06-02 2000-12-08 Seb Sa Cartouche filtrante pour appareil domestique de traitement de l'eau
WO2000075076A1 (fr) * 1999-06-02 2000-12-14 Seb S.A. Cartouche filtrante pour appareil domestique de traitement de l'eau
CN105495983A (zh) * 2014-09-18 2016-04-20 天津工业大学 一种便携式手压超滤膜净水杯

Also Published As

Publication number Publication date
CA2139916A1 (fr) 1995-07-11
FR2714847B1 (fr) 1996-02-16
US5643444A (en) 1997-07-01
FR2714847A1 (fr) 1995-07-13

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